TEWL - Transepidermal Water Loss

The Mineraw TEWL

Transepidermal water loss or commonly known as (TEWL) is the amount of water that evaporates through the layers on skin due to external factors such as environment, climate and etc. The skin is comprised of three primary layers: the epidermis(the outermost layer), the dermis (middle layer), and the hypodermis (the innermost layer). When water passes from the dermis through the epidermis and evaporates from the skin’s surface, this is known as transepidermal water loss. This is highly associated with our skin barrier health as factors that damage the skin’s barrier function can also affect TEWL levels. You can identify if you’re suffering from excessive TEWL from these signs:


  • Water loss is caused by a damaged skin barrier, which often feels irritated.
  • The topmost surface of the skin dries out, dies and peels away in flakes.


  • The skin cracks from water loss, causing an itchy feeling
  • Dehydrated skin cells condense and pull tighter across the surface, resulting in a tight feeling.


The Mineraw - TEWL

TEWL again highlights the importance of a healthy skin barrier as it acts as an additional layer of protection for our skin while locking our skincare in our skin for as long as it could throughout the day. A damaged skin barrier exhibits signs through dry skin,acne breakouts and clogged pores as they are ineffective to water retention, which can lead to skin conditions. To keep your skin's ecosystem healthy and prevent TEWL, take a look at the following lifestyle and skin care tips.  

  • Always remember to moisturize your face 
  • Avoid harsh cleansers and exfoliators 
  • Never skip SPF even on gloomy days 
  • Protect your skin barrier with a suitable oil for your face.

Don't worry as The Mineraw can help you achieve on of these solutions with our bestseller the Glow Serum Face Oil. Don't forget to get yours below:

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